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3 years ago

10

I need help with this problem -8(2v-2)=-4(7+5v)

1 answer:

Ne4ueva [31]3 years ago

6 0

Answer: I'm not sure if this is right or not but I got U = 4

Step-by-step explanation: -8(2v-2)=-4(7+5u. So first I distributed and got -16v -16 = 28 + 20u. And then I added 16u with 20u I added because you change the sign like if it's a negative you make it a positive so once you do 20u+16v you should get 36 and then on the other side it should be -16+16 which equals -16u from when you distributed so now you should have -16u=28+36 so now you would add 28 the 36 since they both are positives and have no variables which you should get 64 and then on the left you should have 16u. So it looks like -16u=64. And then now you would divide -16u on both sides and the side with the variable put it or v whatever variable you want to use and then do 64 divided by 16 and you should get 4.

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KiRa [710]

M=2,000÷((1−(1+0.072÷12)^(−12
×2))÷(0.072÷12))
M=89.73

8 0

3 years ago

What values of a and b make the equation true? StartRoot 648 EndRoot = StartRoot 2 Superscript a Baseline times 3 Superscript b

kramer

Option C: $a=3, b=4$ is the value of a and b

Explanation:

Given that the expression $\sqrt{648}=\sqrt{2^a\times3^b}$

We need to determine the value of a and b

Let us consider the term $\sqrt{648}$ and take the prime factorization of the term 648

Thus, we have,

648 divides by 2,

$648=2 \cdot 324$

324 divides by 2,

$648=2 \cdot 2 \cdot 162$

162 divides by 2,

$648=2 \cdot 2 \cdot 2 \cdot 81$

81 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 27$

27 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 3 \cdot 9$

9 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 3 \cdot 3 \cdot 3$

Thus, we have,

$\sqrt{648}=\sqrt{2^{3} \cdot 3^{4}}$

Therefore, equating the powers of 2 and 3, we get,

$a=3, b=4$

Hence, the value of a and b is 3 and 4

Thus, Option C is the correct answer.

4 0

3 years ago

Read 2 more answers

Si tengo que escribir un ensayo de 5 páginas que es de 500 palabras por página, en 2 días, puedo escribir 32 palabras cada 5 min

patriot [66]

Gracias por los puntos lol

6 0

3 years ago

Identify the equation in slope-intercept form for the line that has the given slope and contains the given point.

Kisachek [45]

The answer I got was y=-12x+43.

Hope this helps!

5 0

2 years ago

Which logarithmic equation is equivalent to 2^5=32

stepan [7]

Answer: 5=log_{2}(32)5=log

2

(32)

Step-by-step explanation:

1. By definition, you have if y=b^{x}y=b

x

, then x=log_{b}(y)x=log

b

(y)

2. Keeping this on mind, you must follow the proccedure shown below:

- You have that:

2^{5}=322

5

=32

Where:

\begin{lgathered}x=5\\y=32\\b=2\end{lgathered}

x=5

y=32

b=2

- Substitute values into x=log_{b}(y)x=log

b

(y) . Then, you obtain:

5=log_{2}(32)5=log

2

(32<em><u>)</u></em>

3 0

3 years ago